Language: English with bilingual summary in English and Spanish
The Ecuadorian members of Masdevallia and affiliates are revised. The 16 genera are treated in alphabetical order. comprising altogether 255 species: Acinopetala (5 spp.), Alaticaulia (53 spp.), Buccella (8 spp.), Byrsella (15 spp.), Diodonopsis (3 spp.), Fissia (1 sp.), Luzama (21 spp.), Masdevallia (93 spp.), Megema (5 spp.), Portillia (1 sp.), Pteroon (1 sp.). Regalia (5 spp.), Rodrigoa (6 spp.), Spilotantha (34 spp.), Triotosiphon (2 spp.), and Zahleria (2 spp.). Keys, descriptions and specimen citation are given for all taxa. All species are illustrated.